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RT5024

Richtek
Part Number RT5024
Manufacturer Richtek
Description I2C Programmable Multi-Channel PMU
Published Dec 10, 2023
Detailed Description ® RT5024 I2C Programmable Multi-Channel PMU with Battery Charger for CMOS DSC/DV General Description The RT5024 is a c...
Datasheet PDF File RT5024 PDF File

RT5024
RT5024

Overview
® RT5024 I2C Programmable Multi-Channel PMU with Battery Charger for CMOS DSC/DV General Description The RT5024 is a complete power supply solution for digital still cameras and other hand held devices.
The RT5024 is composed of multi-channel DC-DC power converter unit, a single-cell linear Li+ ion battery charger, a charger type detector, and an I2C control interface.
The power converter unit includes one synchronous stepup converter (CH1), one synchronous step-up/down converter (CH2), three synchronous step-down converters (CH3/4/5), two LDOs with input power as low as 1.
5V (CH6/8), one WLED driver in synchronous high-voltage step-up mode or low-voltage current regulator mode (CH7), and a keep-alive LDO (CH9) for RTC application.
All converters are internally frequency compensated and integrate power MOSFETs.
The power converter unit provides complete protection functions : over current, thermal shutdown, over voltage and under voltage protection.
The RT5024 has a WAKEUP impulse generation circuitry to monitor VIN or BAT installation event.
To fulfill most of applications, the RT5024 has six preset power on/off sequences.
The battery charger includes Auto Power Path Management (APPM).
No external MOSFETs are required.
The charger can enter sleep mode when power is removed.
Charging tasks are optimized by using a control algorithm to vary the charge rate, including pre-charge mode, fast charge mode and constant voltage mode.
The charge current can also be programmed by the I2C control interface.
The battery regulation voltage and current can be adjusted by JEITA standard temperature control or other schemes set by the I2C interface.
The internal thermal feedback circuitry regulates the die temperature to optimize the charge rate for all ambient temperatures.
The charging task will always be terminated in constant voltage mode when the charging current reduces to the termination current of 10% x ICHG_FAST.
The charger includes under voltage and over voltage prote...


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